CN220477587U

CN220477587U - High-tightness anti-pollution vacuum blood collection tube

Info

Publication number: CN220477587U
Application number: CN202321543449.3U
Authority: CN
Inventors: 陈卫东; 陈闽; 宋秀智; 石彬; 石磊; 梅胜; 陈卫
Original assignee: Hubei Yapunodi Technology Development Co ltd
Current assignee: Hubei Yapunodi Technology Development Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2024-02-13
Anticipated expiration: 2033-06-16

Abstract

The utility model relates to the technical field of medical appliances and discloses a high-tightness anti-pollution vacuum blood collection tube, which comprises a blood collection tube body, wherein the inner wall of the blood collection tube body is slidably connected with a rubber seal head, the top end of the blood collection tube body is fixedly provided with a limiting shell, the top end of the limiting shell is provided with a fixing component, the fixing component comprises a guide block and a protection component, the guide block is fixedly arranged at the top end of the limiting shell, two through grooves and two sliding grooves are respectively formed in the surface of the guide block, the inner walls of the two through grooves are slidably connected with templates, the inner wall of the top end of the template can abut against the top end of a sliding ring, the inner wall of the bottom end of the template abuts against the bottom end of the sliding ring, limiting of the sliding ring in the vertical direction is completed, a puncture needle is further fixed, the puncture needle is prevented from sliding out of the blood collection tube body, blood collection interruption and blood pollution caused by the outside air pressed into the blood collection tube body are avoided, and practicability is enhanced.

Description

High-tightness anti-pollution vacuum blood collection tube

Technical Field

The utility model relates to a vacuum blood collection tube, in particular to a high-tightness anti-pollution vacuum blood collection tube, and belongs to the technical field of medical appliances.

Background

The blood taking needle is used for collecting blood samples in the medical examination process, and the common vacuum blood taking needle consists of a vacuum blood taking tube, a blood taking needle (comprising a blood taking needle head and a puncture plug needle head) and a needle holder. When the vacuum blood collection tube is used, the blood collection needle head is penetrated into a blood vessel, the puncture plug needle head connected with the blood collection needle head through the hose is penetrated into the vacuum blood collection tube, and blood automatically flows into the vacuum blood collection tube under the action of negative pressure in the vacuum blood collection tube. When the vacuum blood collection tube leaves the factory, the tube body is vacuumized.

The utility model discloses an anti-pollution vacuum blood sampling, wherein the application number is "CN201720939712.9", and it includes one end open-ended glass pipe, and the opening part of glass pipe is sealed through a head, and the head is hollow structure, has a spacer in the head, and the spacer separates the cavity of head into first half chamber and second half chamber, and the spacer is made integrative with the head, and the spacer is under the bellied curved surface state of first half chamber of upwards not receiving under the circumstances of external force, and the second half intracavity is filled with the nitrogen gas that is higher than atmospheric pressure. The utility model has the advantages of high tightness, high safety and the like, and the novel high-tightness disposable vacuum blood collection tube disclosed by the application number of CN202021704714.8 comprises a tube cover and a blood collection tube body, wherein the tube cover is arranged on the outer wall of the upper end of the blood collection tube body, the outer wall of the blood collection tube body is provided with a label sticker, when the high-tightness disposable vacuum blood collection tube is used for working, due to the fact that the convex strips are arranged on the circumferential outer wall of the tube cover, when the vacuum blood collection tube collapses, the situation that the vacuum blood collection tube falls down due to rolling of the ground is avoided under the action of the convex strips, the safety performance of the vacuum blood collection tube is greatly improved, and the sealing cover is arranged on the tube cover of the vacuum blood collection tube, the sealing cushion block is connected to the lower end of the sealing cover, the sealing performance of the tube cover can be further improved through the combined action of the sealing cover and the sealing cushion block, and the blood collection needle slot can be protected, dust can not be brought into the tube when the connecting needle is ensured, but the safety performance of the vacuum blood collection tube is greatly improved, and the safety performance of the vacuum blood collection tube is also has the following defects:

the puncture needle head is not fixed, and the puncture needle head can easily slide out of the vacuum blood collection tube, so that blood collection is interrupted and the blood is polluted by the outside air.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a high-tightness anti-pollution vacuum blood collection tube which has the advantages of good tightness and pollution prevention and solves the problems proposed by the background art.

The utility model provides the following technical scheme: the utility model provides a high leakproofness anti-pollution vacuum blood collection tube, includes the blood collection tube body, the inner wall sliding connection of the blood collection tube body has rubber seal, the fixed spacing shell that is equipped with in top of the blood collection tube body, the top of spacing shell is equipped with fixed subassembly, fixed subassembly includes guide block and protection subassembly, the fixed top that sets up at spacing shell of guide block, two logical grooves and two spouts have been seted up respectively to the surface of guide block, two the inner wall sliding connection of logical groove has template, the fixed extension spring that is equipped with between template and the guide block, the surface sliding connection of guide block has the sliding ring, the inner wall of sliding ring is fixed to be equipped with the thorn stopper syringe needle.

As a preferable technical scheme of the utility model, dovetail blocks are fixedly arranged on the inner walls of the front face and the back face of the two through grooves, and the contact parts of the two sliding grooves and the sliding ring are in sliding connection.

As a preferable technical scheme of the utility model, one side of the template is fixedly provided with an inclined sliding block and a stop block respectively, the surface of the inclined sliding block is in sliding connection with the inner wall of one through groove, the surface of the stop block is in sliding connection with the inner wall of the other through groove, the front surface and the back surface of the template are respectively provided with two dovetail grooves, and the inner walls of the four dovetail grooves are respectively in sliding connection with the surfaces of the four dovetail blocks.

As a preferable technical scheme of the utility model, the protection component comprises a connecting ring, the connecting ring is fixedly arranged on the surface of the puncture needle head, a protection cylinder is connected on the surface of the connecting ring in a threaded manner, the protection cylinder is sleeved outside the puncture needle head, a rubber cushion block is fixedly arranged on the inner wall of one end of the protection cylinder, the rubber cushion block is in sliding connection with the contact part of the puncture needle head, anti-skid patterns are arranged on the surface of the protection cylinder, the surface of the protection cylinder is in sliding connection with the surface of the inclined sliding block, and the surface of the protection cylinder is in sliding connection with the surface of the stop block.

As a preferable technical scheme of the utility model, a compression ring is fixedly arranged on the surface of the puncture plug needle head, a sealing ring is fixedly arranged at the bottom end of the compression ring, and a hose is fixedly arranged at the top end of the puncture plug needle head.

As a preferable technical scheme of the utility model, the inner wall of the limiting shell is in sliding connection with the surface of the rubber sealing head, the surface of the limiting shell is provided with a thorn needle hole, and the diameter of the thorn needle hole is larger than that of the outer circle of the pressing ring.

As a preferable technical scheme of the utility model, two air storage grooves are formed in the rubber seal head, nitrogen with the pressure higher than the atmospheric pressure is filled in the two air storage grooves, an auxiliary slot is formed in the top end of the rubber seal head, the inner part of the auxiliary slot is communicated with the inner part of the puncture needle hole, and a liquid outlet groove is formed in the bottom end of the rubber seal head.

Compared with the prior art, the utility model has the following beneficial effects:

1. the inner wall at the top end of the template can prop against the top end of the slip ring, the inner wall at the bottom end of the template can prop against the bottom end of the slip ring, the limiting of the slip ring in the vertical direction is completed, the puncture needle head is further fixed, the puncture needle head is prevented from sliding out of the blood collection tube body, the interruption of blood collection and the pollution of outside air pressed into the blood collection tube body to the inside of the blood collection tube body are further avoided, and the practicability is enhanced;

2. the protection section of thick bamboo covers the thorn stopper syringe needle when not using the thorn stopper syringe needle, protects the thorn stopper syringe needle, and the pointed end of thorn stopper syringe needle inserts the rubber cushion, difficult wearing and tearing, and the sliding ring can drive clamping ring and sealing washer downwardly moving when moving down, and after the thorn stopper syringe needle runs through the inside that rubber head enters into the heparin tube body, the sealing washer finally with the top laminating of rubber head, reinforcing is to the sealed effect of heparin tube body, is favorable to blood to flowing into the inside of heparin tube body because of the negative pressure of heparin tube body is automatic.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3B according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 3 at C in accordance with the present utility model;

fig. 6 is a schematic top view of a plate of the utility model.

In the figure: 1. a blood collection tube body; 2. rubber seal heads; 3. a limit shell; 4. a fixing assembly; 41. a guide block; 42. a through groove; 43. a chute; 44. templates; 45. a slip ring; 46. a puncture needle; 47. a tension spring; 5. a protective assembly; 51. a connecting ring; 52. a protective cylinder; 53. a rubber cushion block; 6. dovetail blocks; 7. an inclined slide block; 8. a stop block; 9. a dovetail groove; 10. a compression ring; 11. a seal ring; 12. a hose; 13. a puncture hole; 14. a gas storage tank; 15. a secondary slot; 16. and (5) discharging the liquid tank.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1-6, the utility model provides a high-tightness anti-pollution vacuum blood collection tube, which comprises a blood collection tube 1, wherein the inner wall of the blood collection tube 1 is slidably connected with a rubber seal head 2, a limit shell 3 is fixedly arranged at the top end of the blood collection tube 1, a fixing component 4 is arranged at the top end of the limit shell 3, the fixing component 4 comprises a guide block 41 and a protection component 5, the guide block 41 is fixedly arranged at the top end of the limit shell 3, two through grooves 42 and two sliding grooves 43 are respectively formed in the surface of the guide block 41, a template 44 is slidably connected to the inner wall of the two through grooves 42, a tension spring 47 is fixedly arranged between the template 44 and the guide block 41, a sliding ring 45 is slidably connected to the surface of the guide block 41, a puncture needle 46 is fixedly arranged on the inner wall of the sliding ring 45, the sliding ring 45 limits the sliding ring 45 in the horizontal direction and guides the vertical direction, when the sliding ring 45 moves downwards, the puncture needle 46 is driven to penetrate through the rubber seal head 2 to enter the inside of the blood collection tube 1, blood flows into the inside of the blood collection tube 1 automatically under the negative pressure effect, the blood flows into the inside the blood collection tube 1, the puncture needle 44 is prevented from being pushed into the inner wall of the sliding ring 45 by the sliding ring 45 from the inner wall of the sliding ring 45, and the upper end of the sliding ring 45 is prevented from being polluted by the sliding ring 45, and the inner wall of the sliding ring 45 is prevented from being stopped by the sliding ring 45, and the inner wall of the sliding ring 45 is fixed against the inner wall of the sliding ring 45.

Referring to fig. 1, 3, 4 and 6, dovetail blocks 6 are fixedly arranged on the front inner walls and the back inner walls of the two through grooves 42, contact portions of the two sliding grooves 43 and the sliding ring 45 are in sliding connection, the template 44 is blocked by the protective cylinder 52 originally, the dovetail blocks 6 can limit the horizontal movement of the template 44 through the dovetail grooves 9, the tension springs 47 are prevented from being excessively shortened after the sliding ring 45 is removed from the surface of the guide block 41, and the tension springs 47 are protected.

Referring to fig. 3, fig. 4, fig. 6, and fig. , one side of the shaping plate 44 is fixedly provided with an inclined sliding block 7 and a stop block 8, the surface of the inclined sliding block 7 is slidably connected with the inner wall of one of the through grooves 42, the surface of the stop block 8 is slidably connected with the inner wall of the other through groove 42, two dovetail grooves 9 are respectively formed in the front and back sides of the shaping plate 44, the inner walls of the four dovetail grooves 9 are slidably connected with the surfaces of the four dovetail blocks 6, and pressing the inclined sliding block 7 downwards can push shaping plate 44 to move away from the guiding block 41, so that when the sliding ring 45 moves downwards, the inclined sliding block 7 is extruded to push the shaping plate 44 to move, the movement of the sliding ring 45 is prevented from being blocked by the shaping plate 44, and the stop block 8 cooperates with the bottom end of the inclined sliding block 7 to limit the sliding ring 45.

Referring to fig. 1, 3, 4 and 5, the protection assembly 5 includes a connection ring 51, the connection ring 51 is fixedly disposed on the surface of the puncture needle 46, a protection cylinder 52 is screwed on the surface of the connection ring 51, the protection cylinder 52 is sleeved outside the puncture needle 46, a rubber cushion block 53 is fixedly disposed on an inner wall of one end of the protection cylinder 52, the rubber cushion block 53 is slidably connected with a contact portion of the puncture needle 46, an anti-slip pattern is disposed on the surface of the protection cylinder 52, the surface of the protection cylinder 52 is slidably connected with the surface of the inclined slide block 7, the surface of the protection cylinder 52 is slidably connected with the surface of the stop block 8, the protection cylinder 52 covers the puncture needle 46 when the puncture needle 46 is not used, the puncture needle 46 is protected, the tip of the puncture needle 46 is inserted into the rubber cushion block 53, the sliding ring 45 is not easy to wear, the sliding ring 45 is pushed to be separated from the two sliding grooves 43, the sliding ring 45 is removed, the protection cylinder 52 is separated from the connection ring 51, and the protection of the puncture needle 46 by the protection cylinder 52 is released.

Referring to fig. 3 and 5, a compression ring 10 is fixed on the surface of a puncture needle 46, a sealing ring 11 is fixed at the bottom end of the compression ring 10, a hose 12 is fixed at the top end of the puncture needle 46, the length of the hose 12 is not limited, an external blood sampling needle for sampling blood is fixed at the tail end of the hose, the puncture needle 46 moves to drive the compression ring 10 to move, the compression ring 10 moves to drive the sealing ring 11 to move, after the puncture needle 46 penetrates through a rubber seal head 2 to enter the blood sampling tube 1, the sealing ring 11 is finally attached to the top end of the rubber seal head 2, the sealing effect on the blood sampling tube 1 is enhanced, and blood is facilitated to automatically flow into the blood sampling tube 1 due to the negative pressure of the blood sampling tube 1.

Referring to fig. 1 and 3, the inner wall of the limiting shell 3 is slidably connected with the surface of the rubber sealing head 2, the surface of the limiting shell 3 is provided with a puncture hole 13, the diameter of the puncture hole 13 is larger than that of the outer circle of the compression ring 10, and the puncture hole 13 allows the puncture needle 46 and the compression ring 10 to penetrate through the limiting shell 3, so that the sealing ring 11 is convenient to be attached to the rubber sealing head 2.

Referring to fig. 1 and 3, two air storage grooves 14 are formed in the rubber seal head 2, nitrogen gas higher than atmospheric pressure is filled in the two air storage grooves 14, an auxiliary slot 15 is formed in the top end of the rubber seal head 2, the inner part of the auxiliary slot 15 is communicated with the inner part of the puncture needle hole 13, a liquid outlet groove 16 is formed in the bottom end of the rubber seal head 2, nitrogen gas in the two air storage grooves 14 can squeeze the rubber seal head 2, sealing effect between the rubber seal head 2 and the puncture needle 46 is better, negative pressure in the blood collection tube 1 is kept for a longer time conveniently, the auxiliary slot 15 is aligned with the puncture needle 46, the puncture needle 46 is convenient to penetrate through the rubber seal head 2 and a liquid taking tube arranged outside, and the liquid outlet groove 16 can collect blood after inverting the blood collection tube 1, so that collected blood can be conveniently led out through the liquid taking tube arranged outside.

Working principle: when the high-tightness anti-pollution vacuum blood collection tube is particularly used, firstly, the protective cylinder 52 is rotated, the protective cylinder 52 is separated from the connecting ring 51, so that the protection of the protective cylinder 52 on the puncture needle 46 is relieved, then the sliding ring 45 is moved downwards, the sliding ring 45 is caused to slide into the two sliding grooves 43, the sliding groove 43 limits the sliding ring 45 horizontally and guides the sliding ring 45 vertically, when the sliding ring 45 moves downwards along the sliding groove 43, the puncture needle 46 is caused to move, the puncture needle 46 penetrates through the rubber seal head 2 to enter the blood collection tube body 1, under the negative pressure in the blood collection tube body 1, blood automatically flows into the blood collection tube body 1, when the sliding ring 45 moves downwards, the inclined sliding block 7 is extruded to cause the template 44 to move, the template 44 is prevented from obstructing the movement of the sliding ring 45, then the template 44 is pulled by the tension spring 47 to move reversely, the inner wall at the top end of the template 44 is pushed against the top end of the slip ring 45, the inner wall at the bottom end of the template 44 is pushed against the bottom end of the slip ring 45, the limit on the vertical direction of the slip ring 45 is completed, the puncture needle 46 is further fixed, the puncture needle 46 is prevented from sliding out of the blood collection tube body 1, further, blood collection interruption and external air is prevented from being pressed into the blood collection tube body 1 to pollute blood, practicability is enhanced, the puncture needle 46 is covered by the protective cylinder 52 when the puncture needle 46 is not used, the puncture needle 46 is protected, the tip of the puncture needle 46 is inserted into the rubber cushion block 53 and is not easy to wear, the slip ring 45 can drive the compression ring 10 and the sealing ring 11 to move downwards when moving downwards, the sealing ring 11 is finally attached to the top end of the rubber sealing ring 2 after the puncture needle 46 penetrates through the rubber sealing ring 2 to enter the blood collection tube body 1, and sealing effect on the blood collection tube body 1 is enhanced, is beneficial to the automatic flow of blood into the blood collection tube body 1 due to the negative pressure of the blood collection tube body 1.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high leakproofness anti-pollution vacuum blood collection tube, includes blood collection tube body (1), its characterized in that, the inner wall sliding connection of blood collection tube body (1) has rubber head (2), the fixed spacing shell (3) that is equipped with in top of blood collection tube body (1), the top of spacing shell (3) is equipped with fixed subassembly (4), fixed subassembly (4) include guide block (41) and protection subassembly (5), the fixed top that sets up in spacing shell (3) of guide block (41), two logical groove (42) and two spout (43) have been seted up respectively to the surface of guide block (41), two the inner wall sliding connection of logical groove (42) has template (44), fixed extension spring (47) that are equipped with between template (44) and the guide block (41), the surface sliding connection of guide block (41) has sliding ring (45), the inner wall of sliding ring (45) is fixed to be equipped with spike (46).

2. The high-tightness anti-pollution vacuum blood collection tube according to claim 1, wherein: dovetail blocks (6) are fixedly arranged on the inner walls of the front sides and the back sides of the through grooves (42), and the contact parts of the sliding grooves (43) and the sliding rings (45) are in sliding connection.

3. The high-tightness anti-pollution vacuum blood collection tube according to claim 2, wherein: one side of template (44) is fixed respectively and is equipped with oblique slider (7) and dog (8), the surface of oblique slider (7) and the inner wall sliding connection of one of them logical groove (42), the surface of dog (8) and the inner wall sliding connection of another logical groove (42), two dovetail (9) have all been seted up to the front and the back of template (44), four the inner wall of dovetail (9) respectively with the surface sliding connection of four dovetail (6).

4. A high-tightness anti-pollution vacuum blood collection tube according to claim 3, wherein: the protection component (5) comprises a connecting ring (51), the surface of the puncture needle head (46) is fixedly arranged on the connecting ring (51), a protection cylinder (52) is connected with the surface of the connecting ring (51) in a threaded mode, the protection cylinder (52) is sleeved outside the puncture needle head (46), a rubber cushion block (53) is fixedly arranged on the inner wall of one end of the protection cylinder (52), the rubber cushion block (53) is in sliding connection with the contact part of the puncture needle head (46), anti-skidding patterns are formed on the surface of the protection cylinder (52), the surface of the protection cylinder (52) is in sliding connection with the surface of the inclined sliding block (7), and the surface of the protection cylinder (52) is in sliding connection with the surface of the stop block (8).

5. The high-tightness anti-pollution vacuum blood collection tube according to claim 1, wherein: the surface fixing of thorn stopper syringe needle (46) is equipped with clamping ring (10), the bottom mounting of clamping ring (10) is equipped with sealing washer (11), the top of thorn stopper syringe needle (46) is fixed and is equipped with hose (12).

6. The high-tightness anti-pollution vacuum blood collection tube according to claim 5, wherein: the inner wall of the limiting shell (3) is in sliding connection with the surface of the rubber sealing head (2), a puncture needle hole (13) is formed in the surface of the limiting shell (3), and the diameter of the puncture needle hole (13) is larger than that of the outer circle of the pressing ring (10).

7. The high-tightness anti-pollution vacuum blood collection tube according to claim 6, wherein: two air storage grooves (14) are formed in the rubber sealing head (2), nitrogen which is higher than atmospheric pressure is filled in the two air storage grooves (14), an auxiliary slot (15) is formed in the top end of the rubber sealing head (2), the inner part of the auxiliary slot (15) is communicated with the inner part of the puncture needle hole (13), and a liquid outlet groove (16) is formed in the bottom end of the rubber sealing head (2).